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Top Forums UNIX for Advanced & Expert Users Permissions for /etc/shadow file Post 302518600 by ygemici on Saturday 30th of April 2011 12:16:41 PM
Old 04-30-2011
/etc/shadow file is readable only by the root user because of there is security risk.for detail information you can look this page

open files is opened files,dirs,pipes,fifos,character device,file descriptor,sockets,shared libary .. in the system.
These files are opened(loaded) by a process or kernel threads or user comamnds or user shell or startup services(daemon)...
try lsof(open fıles) or fuser(opened files in ps buffer) or ps(open proces) or netstat(open sockets)

regards
ygemici
 

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XDG-OPEN(1)							  xdg-open Manual						       XDG-OPEN(1)

NAME
xdg-open - opens a file or URL in the user's preferred application SYNOPSIS
xdg-open {file | URL} xdg-open {--help | --manual | --version} DESCRIPTION
xdg-open opens a file or URL in the user's preferred application. If a URL is provided the URL will be opened in the user's preferred web browser. If a file is provided the file will be opened in the preferred application for files of that type. xdg-open supports file, ftp, http and https URLs. xdg-open is for use inside a desktop session only. It is not recommended to use xdg-open as root. OPTIONS
--help Show command synopsis. --manual Show this manual page. --version Show the xdg-utils version information. EXIT CODES
An exit code of 0 indicates success while a non-zero exit code indicates failure. The following failure codes can be returned: 1 Error in command line syntax. 2 One of the files passed on the command line did not exist. 3 A required tool could not be found. 4 The action failed. EXAMPLES
xdg-open 'http://www.freedesktop.org/' Opens the freedesktop.org website in the user's default browser. xdg-open /tmp/foobar.png Opens the PNG image file /tmp/foobar.png in the user's default image viewing application. AUTHORS
Kevin Krammer Author. Jeremy White Author. COPYRIGHT
Copyright (C) 2006 xdg-utils 1.0 06/10/2014 XDG-OPEN(1)
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